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<h2><a name="SECTION0036430000000000000000"></a>
<a name="forms-objects"></a>
<br>
34.4.3 FORMS Objects
</h2>

<p>
Besides methods specific to particular kinds of FORMS objects, all
FORMS objects also have the following methods:

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5679' xml:id='l2h-5679' class="method">set_call_back</tt></b>(</nobr></td>
  <td><var>function, argument</var>)</td></tr></table></dt>
<dd>
Set the object's callback function and argument.  When the object
needs interaction, the callback function will be called with two
arguments: the object, and the callback argument.  (FORMS objects
without a callback function are returned by <tt class="function">fl.do_forms()</tt>
or <tt class="function">fl.check_forms()</tt> when they need interaction.)  Call this
method without arguments to remove the callback function.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5680' xml:id='l2h-5680' class="method">delete_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Delete the object.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5681' xml:id='l2h-5681' class="method">show_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Show the object.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5682' xml:id='l2h-5682' class="method">hide_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Hide the object.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5683' xml:id='l2h-5683' class="method">redraw_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Redraw the object.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5684' xml:id='l2h-5684' class="method">freeze_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Freeze the object.
</dl>

<p>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5685' xml:id='l2h-5685' class="method">unfreeze_object</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
  Unfreeze the object.
</dl>

<p>
FORMS objects have these data attributes; see the FORMS documentation:

<p>
<div class="center"><table class="realtable">
  <thead>
    <tr>
      <th class="left"  >Name</th>
      <th class="left"  >C Type</th>
      <th class="left"  >Meaning</th>
      </tr>
    </thead>
  <tbody>
    <tr><td class="left"   valign="baseline"><tt class="member">objclass</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >object class</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">type</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >object type</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">boxtype</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >box type</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">x</tt></td>
        <td class="left"  >float</td>
        <td class="left"  >x origin</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">y</tt></td>
        <td class="left"  >float</td>
        <td class="left"  >y origin</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">w</tt></td>
        <td class="left"  >float</td>
        <td class="left"  >width</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">h</tt></td>
        <td class="left"  >float</td>
        <td class="left"  >height</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">col1</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >primary color</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">col2</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >secondary color</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">align</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >alignment</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">lcol</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >label color</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">lsize</tt></td>
        <td class="left"  >float</td>
        <td class="left"  >label font size</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">label</tt></td>
        <td class="left"  >string</td>
        <td class="left"  >label string</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">lstyle</tt></td>
        <td class="left"  >int</td>
        <td class="left"  >label style</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">pushed</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">focus</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">belowmouse</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">frozen</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">active</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">input</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">visible</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">radio</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr>
    <tr><td class="left"   valign="baseline"><tt class="member">automatic</tt></td>
        <td class="left"  >int (read-only)</td>
        <td class="left"  >(see FORMS docs)</td></tr></tbody>
</table></div>

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